Maximum likelihood estimates of the phylogenetic relationships among taxa for five genes involved in gonadogenesis. Branch lengths are proportional to the number of substitutions per site; numbers at nodes are bootstrap proportions based on 500 pseudoreplicates. Colored branches denote the taxonomic group for each taxon. Tip font colors denote sex-determining mechanisms (red = TSD, gray = GSD). For all species, the full coding region was utilized except where only partial sequences were available, in which case the tip is denoted as (P).
Bradley Shaffer et al. Genome Biology 2013 14:R28 doi:10.1186/gb-2013-14-3-r28